C503B-AAS-CY0B0252 Equivalent & Substitute Parts

Part Overview

The C503B-AAS-CY0B0252 is an amber LED indicator with 5mm round through-hole packaging manufactured by CreeLED, Inc. This component is designed for discrete indication applications requiring 591nm amber wavelength output at 2.1V forward voltage. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide alternative packaging or inventory options while maintaining identical electrical and optical performance characteristics.

Substiute Parts

C503B-AAS-CY0B0252

CreeLED, Inc.In Stock: 1045C503B-AAS-CY0B0252 Datasheet

Current PartRFQ

C503B-AAN-CY0B0252

CreeLED, Inc.In Stock: 3588C503B-AAN-CY0B0252 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between C503B-AAS-CY0B0252 and C503B-AAN-CY0B0252 is valid based on the following criteria:

Identical Electrical Parameters:

• Wavelength - Dominant: 591nm
• Forward Voltage (Vf): 2.1V
• Test Current: 20mA
• Millicandela Rating: 14680mcd

Identical Optical Parameters:

• Color: Amber
• Lens Style: Round with Domed Top
• Lens Color: Colorless
• Lens Transparency: Clear
• Viewing Angle: 15°
• Lens Size: 5.00mm Dia

Identical Mechanical Parameters:

• Mounting Type: Through Hole
• Package / Case: Radial
• Supplier Device Package: 5mm Round
• Base Product Number: C503B

Difference - Packaging Format Only:

• C503B-AAS-CY0B0252: Tape & Box (TB)
• C503B-AAN-CY0B0252: Cut Tape (CT)

Both parts share identical compliance status (RoHS Compliant, REACH Unaffected) and moisture sensitivity rating (MSL 1 - Unlimited).

Parameter Comparison

Engineering Selection Recommendations

C503B-AAN-CY0B0252 is a direct functional equivalent to C503B-AAS-CY0B0252 for all circuit design and optical performance requirements. Selection between these parts should be based on:

Packaging Requirements: Choose C503B-AAS-CY0B0252 (Tape & Box) for applications requiring bulk packaging with protective boxing. Select C503B-AAN-CY0B0252 (Cut Tape) for applications with lower volume requirements or where individual tape segments are preferred.

Physical Clearance: Note the height difference of 2.00mm maximum (C503B-AAS-CY0B0252 at 13.30mm vs. C503B-AAN-CY0B0252 at 11.30mm). Verify PCB layout clearance requirements before substitution if height is a constraint.

Compliance: Both parts meet RoHS and REACH requirements. C503B-AAN-CY0B0252 carries ROHS3 designation, providing confirmation of compliance with the most current RoHS directive revision.

Inventory Availability: C503B-AAN-CY0B0252 currently has higher inventory (3526 pcs) compared to C503B-AAS-CY0B0252 (1027 pcs).

Frequently Asked Questions (FAQ)

Q: Can C503B-AAN-CY0B0252 replace C503B-AAS-CY0B0252 in existing designs?

A: Yes, for all electrical and optical performance criteria. The parts are electrically and optically identical. Verify physical clearance due to the 2.00mm height difference before PCB layout finalization.

Q: What is the difference between Tape & Box and Cut Tape packaging?

A: Tape & Box (TB) provides components on continuous tape with protective cardboard boxing for bulk quantities. Cut Tape (CT) provides components on individual tape segments without boxing, suitable for smaller order quantities or component kitting.

Q: Are both parts RoHS compliant?

A: Yes. C503B-AAS-CY0B0252 is RoHS Compliant. C503B-AAN-CY0B0252 is ROHS3 Compliant, indicating compliance with the current RoHS directive revision.

Q: What are the critical parameters for substitution?

A: Wavelength (591nm), forward voltage (2.1V), test current (20mA), millicandela rating (14680mcd), lens size (5.00mm), viewing angle (15°), and mounting type (Through Hole) must remain constant. Packaging format and maximum height may vary based on application requirements.

Q: Is moisture sensitivity a concern for either part?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.